Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f3207f2d9611350…

MALICIOUS

PDF

49.3 KB Created: 2020-08-22 09:25:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06a22b5f22c7c9bb3d7b06445f6705c5 SHA-1: 92d91d8f30ae0488b8519733b7ca30303e7e262e SHA-256: 0f3207f2d961135090be416ac573e28a94f8fcd4f34c200e46894f56e031f0d2
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to redirector infrastructure or potentially malicious content, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though partially obfuscated, includes a URL that appears to be a lure for a TV series episode guide, likely intended to trick users into clicking malicious links. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=quantico+tv+series+episode+guide
    • http://zaled.theplotterprincess.com/uploads/1/3/2/7/132712116/kupalalusanijuwa.pdf
    • http://xobipol.claytonbrowneortho.com/uploads/1/3/1/4/131437940/697928.pdf
    • http://wemanobew.upstagenydanceacademy.com/uploads/1/3/0/9/130969525/lapubodujexu-pejitug-vanutizoju.pdf
    • http://files.uniwayonline.com/uploads/1/3/1/3/131397946/wiraxa.pdf
    • http://files.uintahonline.com/uploads/1/3/1/4/131454172/pinoruj-wumeviwi-zabelodarut-tujavojitak.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/8229/3152/files/avg_internet_security_2019_crack.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9506/files/37492955479.pdf
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/zitali.pdf
    • https://cdn.shopify.com/s/files/1/0434/5282/5750/files/62722107780.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/zenelasaluvewodekili.pdf
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/western_union_online_transfer.pdf
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/49236189233.pdf
    • https://cdn.shopify.com/s/files/1/0435/4208/5783/files/cloud_architecture_patterns_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1898/5370/files/89233450026.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vofekofunore.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/liwowapes.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081de.bin
447e0e742014c4d8ef0e96f8f53c73756b6a0c29cbfa2cb6595d4c2702276ec4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81DE 5332 bytes
font_01_sfnt_off0000940c.bin
f922f72aa4b439c11fc25a6ab09de60e6fcd48cdcbd589ba2f640ac5b81872a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x940C 10636 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.